The pipe goes under a railway line that is buried in concrete. There seems to be lots of grit and stones in there. I can get fencing wire right along the pipe but water will still not go through. I'll try a waterblaster next but that won't go around the bend. The other end of the pipe is completely unaccessible.
Where can one buy these 6 storey high garden canes? (I don't have a local branch of Jack's Beanstalk Garden Centres.)
NT
Screwfix. For 15m, you'll want one of these:
(If you need to actually buy, I think the chemical route would be best)
For the record, I cleared the drainpipe. I made a large rubber washer to fit the 3" pipe and screwed a hose connection into it. I screwed a long bolt to the washer so that I could hold it in place in the pipe. I attached a hose and someone turned the tap on. After a few minutes, whatever was in the pipe was flushed out.
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